client/src/app/videos/+video-watch/video-watch.component.ts

   1 import { catchError } from 'rxjs/operators'
   2 import { ChangeDetectorRef, Component, ElementRef, Inject, LOCALE_ID, NgZone, OnDestroy, OnInit, ViewChild } from '@angular/core'
   3 import { ActivatedRoute, Router } from '@angular/router'
   4 import { RedirectService } from '@app/core/routing/redirect.service'
   5 import { peertubeLocalStorage } from '@app/shared/misc/peertube-local-storage'
   6 import { VideoSupportComponent } from '@app/videos/+video-watch/modal/video-support.component'
   7 import { MetaService } from '@ngx-meta/core'
   8 import { Notifier, ServerService } from '@app/core'
   9 import { forkJoin, Subscription } from 'rxjs'
  10 import { Hotkey, HotkeysService } from 'angular2-hotkeys'
  11 import { UserVideoRateType, VideoCaption, VideoPrivacy, VideoState } from '../../../../../shared'
  12 import { AuthService, ConfirmService } from '../../core'
  13 import { RestExtractor, VideoBlacklistService } from '../../shared'
  14 import { VideoDetails } from '../../shared/video/video-details.model'
  15 import { VideoService } from '../../shared/video/video.service'
  16 import { VideoShareComponent } from './modal/video-share.component'
  17 import { SubscribeButtonComponent } from '@app/shared/user-subscription/subscribe-button.component'
  18 import { I18n } from '@ngx-translate/i18n-polyfill'
  19 import { environment } from '../../../environments/environment'
  20 import { VideoCaptionService } from '@app/shared/video-caption'
  21 import { MarkdownService } from '@app/shared/renderer'
  22 import {
  23   P2PMediaLoaderOptions,
  24   PeertubePlayerManager,
  25   PeertubePlayerManagerOptions,
  26   PlayerMode
  27 } from '../../../assets/player/peertube-player-manager'
  28 import { VideoPlaylist } from '@app/shared/video-playlist/video-playlist.model'
  29 import { VideoPlaylistService } from '@app/shared/video-playlist/video-playlist.service'
  30 import { Video } from '@app/shared/video/video.model'
  31 import { isWebRTCDisabled } from '../../../assets/player/utils'
  32 import { VideoWatchPlaylistComponent } from '@app/videos/+video-watch/video-watch-playlist.component'
  33
  34 @Component({
  35   selector: 'my-video-watch',
  36   templateUrl: './video-watch.component.html',
  37   styleUrls: [ './video-watch.component.scss' ]
  38 })
  39 export class VideoWatchComponent implements OnInit, OnDestroy {
  40   private static LOCAL_STORAGE_PRIVACY_CONCERN_KEY = 'video-watch-privacy-concern'
  41
  42   @ViewChild('videoWatchPlaylist') videoWatchPlaylist: VideoWatchPlaylistComponent
  43   @ViewChild('videoShareModal') videoShareModal: VideoShareComponent
  44   @ViewChild('videoSupportModal') videoSupportModal: VideoSupportComponent
  45   @ViewChild('subscribeButton') subscribeButton: SubscribeButtonComponent
  46
  47   player: any
  48   playerElement: HTMLVideoElement
  49   theaterEnabled = false
  50   userRating: UserVideoRateType = null
  51   video: VideoDetails = null
  52   descriptionLoading = false
  53
  54   playlist: VideoPlaylist = null
  55
  56   completeDescriptionShown = false
  57   completeVideoDescription: string
  58   shortVideoDescription: string
  59   videoHTMLDescription = ''
  60   likesBarTooltipText = ''
  61   hasAlreadyAcceptedPrivacyConcern = false
  62   remoteServerDown = false
  63   hotkeys: Hotkey[]
  64
  65   private currentTime: number
  66   private paramsSub: Subscription
  67   private queryParamsSub: Subscription
  68   private configSub: Subscription
  69
  70   constructor (
  71     private elementRef: ElementRef,
  72     private changeDetector: ChangeDetectorRef,
  73     private route: ActivatedRoute,
  74     private router: Router,
  75     private videoService: VideoService,
  76     private playlistService: VideoPlaylistService,
  77     private videoBlacklistService: VideoBlacklistService,
  78     private confirmService: ConfirmService,
  79     private metaService: MetaService,
  80     private authService: AuthService,
  81     private serverService: ServerService,
  82     private restExtractor: RestExtractor,
  83     private notifier: Notifier,
  84     private markdownService: MarkdownService,
  85     private zone: NgZone,
  86     private redirectService: RedirectService,
  87     private videoCaptionService: VideoCaptionService,
  88     private i18n: I18n,
  89     private hotkeysService: HotkeysService,
  90     @Inject(LOCALE_ID) private localeId: string
  91   ) {}
  92
  93   get user () {
  94     return this.authService.getUser()
  95   }
  96
  97   ngOnInit () {
  98     this.configSub = this.serverService.configLoaded
  99         .subscribe(() => {
 100           if (
 101             isWebRTCDisabled() ||
 102             this.serverService.getConfig().tracker.enabled === false ||
 103             peertubeLocalStorage.getItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY) === 'true'
 104           ) {
 105             this.hasAlreadyAcceptedPrivacyConcern = true
 106           }
 107         })
 108
 109     this.paramsSub = this.route.params.subscribe(routeParams => {
 110       const videoId = routeParams[ 'videoId' ]
 111       if (videoId) this.loadVideo(videoId)
 112
 113       const playlistId = routeParams[ 'playlistId' ]
 114       if (playlistId) this.loadPlaylist(playlistId)
 115     })
 116
 117     this.queryParamsSub = this.route.queryParams.subscribe(queryParams => {
 118       const videoId = queryParams[ 'videoId' ]
 119       if (videoId) this.loadVideo(videoId)
 120     })
 121
 122     this.hotkeys = [
 123       new Hotkey('shift+l', (event: KeyboardEvent): boolean => {
 124         this.setLike()
 125         return false
 126       }, undefined, this.i18n('Like the video')),
 127       new Hotkey('shift+d', (event: KeyboardEvent): boolean => {
 128         this.setDislike()
 129         return false
 130       }, undefined, this.i18n('Dislike the video')),
 131       new Hotkey('shift+s', (event: KeyboardEvent): boolean => {
 132         this.subscribeButton.subscribed ?
 133           this.subscribeButton.unsubscribe() :
 134           this.subscribeButton.subscribe()
 135         return false
 136       }, undefined, this.i18n('Subscribe to the account'))
 137     ]
 138     if (this.isUserLoggedIn()) this.hotkeysService.add(this.hotkeys)
 139   }
 140
 141   ngOnDestroy () {
 142     this.flushPlayer()
 143
 144     // Unsubscribe subscriptions
 145     if (this.paramsSub) this.paramsSub.unsubscribe()
 146     if (this.queryParamsSub) this.queryParamsSub.unsubscribe()
 147
 148     // Unbind hotkeys
 149     if (this.isUserLoggedIn()) this.hotkeysService.remove(this.hotkeys)
 150   }
 151
 152   setLike () {
 153     if (this.isUserLoggedIn() === false) return
 154     if (this.userRating === 'like') {
 155       // Already liked this video
 156       this.setRating('none')
 157     } else {
 158       this.setRating('like')
 159     }
 160   }
 161
 162   setDislike () {
 163     if (this.isUserLoggedIn() === false) return
 164     if (this.userRating === 'dislike') {
 165       // Already disliked this video
 166       this.setRating('none')
 167     } else {
 168       this.setRating('dislike')
 169     }
 170   }
 171
 172   showMoreDescription () {
 173     if (this.completeVideoDescription === undefined) {
 174       return this.loadCompleteDescription()
 175     }
 176
 177     this.updateVideoDescription(this.completeVideoDescription)
 178     this.completeDescriptionShown = true
 179   }
 180
 181   showLessDescription () {
 182     this.updateVideoDescription(this.shortVideoDescription)
 183     this.completeDescriptionShown = false
 184   }
 185
 186   loadCompleteDescription () {
 187     this.descriptionLoading = true
 188
 189     this.videoService.loadCompleteDescription(this.video.descriptionPath)
 190         .subscribe(
 191           description => {
 192             this.completeDescriptionShown = true
 193             this.descriptionLoading = false
 194
 195             this.shortVideoDescription = this.video.description
 196             this.completeVideoDescription = description
 197
 198             this.updateVideoDescription(this.completeVideoDescription)
 199           },
 200
 201           error => {
 202             this.descriptionLoading = false
 203             this.notifier.error(error.message)
 204           }
 205         )
 206   }
 207
 208   showSupportModal () {
 209     this.videoSupportModal.show()
 210   }
 211
 212   showShareModal () {
 213     this.videoShareModal.show(this.currentTime)
 214   }
 215
 216   isUserLoggedIn () {
 217     return this.authService.isLoggedIn()
 218   }
 219
 220   getVideoTags () {
 221     if (!this.video || Array.isArray(this.video.tags) === false) return []
 222
 223     return this.video.tags
 224   }
 225
 226   onVideoRemoved () {
 227     this.redirectService.redirectToHomepage()
 228   }
 229
 230   acceptedPrivacyConcern () {
 231     peertubeLocalStorage.setItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY, 'true')
 232     this.hasAlreadyAcceptedPrivacyConcern = true
 233   }
 234
 235   isVideoToTranscode () {
 236     return this.video && this.video.state.id === VideoState.TO_TRANSCODE
 237   }
 238
 239   isVideoToImport () {
 240     return this.video && this.video.state.id === VideoState.TO_IMPORT
 241   }
 242
 243   hasVideoScheduledPublication () {
 244     return this.video && this.video.scheduledUpdate !== undefined
 245   }
 246
 247   isVideoBlur (video: Video) {
 248     return video.isVideoNSFWForUser(this.user, this.serverService.getConfig())
 249   }
 250
 251   private loadVideo (videoId: string) {
 252     // Video did not change
 253     if (this.video && this.video.uuid === videoId) return
 254
 255     if (this.player) this.player.pause()
 256
 257     // Video did change
 258     forkJoin(
 259       this.videoService.getVideo(videoId),
 260       this.videoCaptionService.listCaptions(videoId)
 261     )
 262       .pipe(
 263         // If 401, the video is private or blacklisted so redirect to 404
 264         catchError(err => this.restExtractor.redirectTo404IfNotFound(err, [ 400, 401, 403, 404 ]))
 265       )
 266       .subscribe(([ video, captionsResult ]) => {
 267         const queryParams = this.route.snapshot.queryParams
 268         const startTime = queryParams.start
 269         const stopTime = queryParams.stop
 270         const subtitle = queryParams.subtitle
 271         const playerMode = queryParams.mode
 272
 273         this.onVideoFetched(video, captionsResult.data, { startTime, stopTime, subtitle, playerMode })
 274             .catch(err => this.handleError(err))
 275       })
 276   }
 277
 278   private loadPlaylist (playlistId: string) {
 279     // Playlist did not change
 280     if (this.playlist && this.playlist.uuid === playlistId) return
 281
 282     this.playlistService.getVideoPlaylist(playlistId)
 283       .pipe(
 284         // If 401, the video is private or blacklisted so redirect to 404
 285         catchError(err => this.restExtractor.redirectTo404IfNotFound(err, [ 400, 401, 403, 404 ]))
 286       )
 287       .subscribe(playlist => {
 288         this.playlist = playlist
 289
 290         const videoId = this.route.snapshot.queryParams['videoId']
 291         this.videoWatchPlaylist.loadPlaylistElements(playlist, !videoId)
 292       })
 293   }
 294
 295   private updateVideoDescription (description: string) {
 296     this.video.description = description
 297     this.setVideoDescriptionHTML()
 298   }
 299
 300   private async setVideoDescriptionHTML () {
 301     this.videoHTMLDescription = await this.markdownService.textMarkdownToHTML(this.video.description)
 302   }
 303
 304   private setVideoLikesBarTooltipText () {
 305     this.likesBarTooltipText = this.i18n('{{likesNumber}} likes / {{dislikesNumber}} dislikes', {
 306       likesNumber: this.video.likes,
 307       dislikesNumber: this.video.dislikes
 308     })
 309   }
 310
 311   private handleError (err: any) {
 312     const errorMessage: string = typeof err === 'string' ? err : err.message
 313     if (!errorMessage) return
 314
 315     // Display a message in the video player instead of a notification
 316     if (errorMessage.indexOf('from xs param') !== -1) {
 317       this.flushPlayer()
 318       this.remoteServerDown = true
 319       this.changeDetector.detectChanges()
 320
 321       return
 322     }
 323
 324     this.notifier.error(errorMessage)
 325   }
 326
 327   private checkUserRating () {
 328     // Unlogged users do not have ratings
 329     if (this.isUserLoggedIn() === false) return
 330
 331     this.videoService.getUserVideoRating(this.video.id)
 332         .subscribe(
 333           ratingObject => {
 334             if (ratingObject) {
 335               this.userRating = ratingObject.rating
 336             }
 337           },
 338
 339           err => this.notifier.error(err.message)
 340         )
 341   }
 342
 343   private async onVideoFetched (
 344     video: VideoDetails,
 345     videoCaptions: VideoCaption[],
 346     urlOptions: { startTime?: number, stopTime?: number, subtitle?: string, playerMode?: string }
 347   ) {
 348     this.video = video
 349
 350     // Re init attributes
 351     this.descriptionLoading = false
 352     this.completeDescriptionShown = false
 353     this.remoteServerDown = false
 354     this.currentTime = undefined
 355
 356     this.videoWatchPlaylist.updatePlaylistIndex(video)
 357
 358     let startTime = urlOptions.startTime || (this.video.userHistory ? this.video.userHistory.currentTime : 0)
 359     // If we are at the end of the video, reset the timer
 360     if (this.video.duration - startTime <= 1) startTime = 0
 361
 362     if (this.isVideoBlur(this.video)) {
 363       const res = await this.confirmService.confirm(
 364         this.i18n('This video contains mature or explicit content. Are you sure you want to watch it?'),
 365         this.i18n('Mature or explicit content')
 366       )
 367       if (res === false) return this.redirectService.redirectToHomepage()
 368     }
 369
 370     // Flush old player if needed
 371     this.flushPlayer()
 372
 373     // Build video element, because videojs remove it on dispose
 374     const playerElementWrapper = this.elementRef.nativeElement.querySelector('#videojs-wrapper')
 375     this.playerElement = document.createElement('video')
 376     this.playerElement.className = 'video-js vjs-peertube-skin'
 377     this.playerElement.setAttribute('playsinline', 'true')
 378     playerElementWrapper.appendChild(this.playerElement)
 379
 380     const playerCaptions = videoCaptions.map(c => ({
 381       label: c.language.label,
 382       language: c.language.id,
 383       src: environment.apiUrl + c.captionPath
 384     }))
 385
 386     const options: PeertubePlayerManagerOptions = {
 387       common: {
 388         autoplay: this.isAutoplay(),
 389
 390         playerElement: this.playerElement,
 391         onPlayerElementChange: (element: HTMLVideoElement) => this.playerElement = element,
 392
 393         videoDuration: this.video.duration,
 394         enableHotkeys: true,
 395         inactivityTimeout: 2500,
 396         poster: this.video.previewUrl,
 397         startTime,
 398         stopTime: urlOptions.stopTime,
 399
 400         theaterMode: true,
 401         captions: videoCaptions.length !== 0,
 402         peertubeLink: false,
 403
 404         videoViewUrl: this.video.privacy.id !== VideoPrivacy.PRIVATE ? this.videoService.getVideoViewUrl(this.video.uuid) : null,
 405         embedUrl: this.video.embedUrl,
 406
 407         language: this.localeId,
 408
 409         subtitle: urlOptions.subtitle,
 410
 411         userWatching: this.user && this.user.videosHistoryEnabled === true ? {
 412           url: this.videoService.getUserWatchingVideoUrl(this.video.uuid),
 413           authorizationHeader: this.authService.getRequestHeaderValue()
 414         } : undefined,
 415
 416         serverUrl: environment.apiUrl,
 417
 418         videoCaptions: playerCaptions
 419       },
 420
 421       webtorrent: {
 422         videoFiles: this.video.files
 423       }
 424     }
 425
 426     const mode: PlayerMode = urlOptions.playerMode === 'p2p-media-loader' ? 'p2p-media-loader' : 'webtorrent'
 427
 428     if (mode === 'p2p-media-loader') {
 429       const hlsPlaylist = this.video.getHlsPlaylist()
 430
 431       const p2pMediaLoader = {
 432         playlistUrl: hlsPlaylist.playlistUrl,
 433         segmentsSha256Url: hlsPlaylist.segmentsSha256Url,
 434         redundancyBaseUrls: hlsPlaylist.redundancies.map(r => r.baseUrl),
 435         trackerAnnounce: this.video.trackerUrls,
 436         videoFiles: this.video.files
 437       } as P2PMediaLoaderOptions
 438
 439       Object.assign(options, { p2pMediaLoader })
 440     }
 441
 442     this.zone.runOutsideAngular(async () => {
 443       this.player = await PeertubePlayerManager.initialize(mode, options)
 444       this.theaterEnabled = this.player.theaterEnabled
 445
 446       this.player.on('customError', ({ err }: { err: any }) => this.handleError(err))
 447
 448       this.player.on('timeupdate', () => {
 449         this.currentTime = Math.floor(this.player.currentTime())
 450       })
 451
 452       this.player.one('ended', () => {
 453         if (this.playlist) {
 454           this.zone.run(() => this.videoWatchPlaylist.navigateToNextPlaylistVideo())
 455         }
 456       })
 457
 458       this.player.one('stopped', () => {
 459         if (this.playlist) {
 460           this.zone.run(() => this.videoWatchPlaylist.navigateToNextPlaylistVideo())
 461         }
 462       })
 463
 464       this.player.on('theaterChange', (_: any, enabled: boolean) => {
 465         this.zone.run(() => this.theaterEnabled = enabled)
 466       })
 467     })
 468
 469     this.setVideoDescriptionHTML()
 470     this.setVideoLikesBarTooltipText()
 471
 472     this.setOpenGraphTags()
 473     this.checkUserRating()
 474   }
 475
 476   private setRating (nextRating: UserVideoRateType) {
 477     let method
 478     switch (nextRating) {
 479       case 'like':
 480         method = this.videoService.setVideoLike
 481         break
 482       case 'dislike':
 483         method = this.videoService.setVideoDislike
 484         break
 485       case 'none':
 486         method = this.videoService.unsetVideoLike
 487         break
 488     }
 489
 490     method.call(this.videoService, this.video.id)
 491           .subscribe(
 492             () => {
 493               // Update the video like attribute
 494               this.updateVideoRating(this.userRating, nextRating)
 495               this.userRating = nextRating
 496             },
 497
 498             (err: { message: string }) => this.notifier.error(err.message)
 499           )
 500   }
 501
 502   private updateVideoRating (oldRating: UserVideoRateType, newRating: UserVideoRateType) {
 503     let likesToIncrement = 0
 504     let dislikesToIncrement = 0
 505
 506     if (oldRating) {
 507       if (oldRating === 'like') likesToIncrement--
 508       if (oldRating === 'dislike') dislikesToIncrement--
 509     }
 510
 511     if (newRating === 'like') likesToIncrement++
 512     if (newRating === 'dislike') dislikesToIncrement++
 513
 514     this.video.likes += likesToIncrement
 515     this.video.dislikes += dislikesToIncrement
 516
 517     this.video.buildLikeAndDislikePercents()
 518     this.setVideoLikesBarTooltipText()
 519   }
 520
 521   private setOpenGraphTags () {
 522     this.metaService.setTitle(this.video.name)
 523
 524     this.metaService.setTag('og:type', 'video')
 525
 526     this.metaService.setTag('og:title', this.video.name)
 527     this.metaService.setTag('name', this.video.name)
 528
 529     this.metaService.setTag('og:description', this.video.description)
 530     this.metaService.setTag('description', this.video.description)
 531
 532     this.metaService.setTag('og:image', this.video.previewPath)
 533
 534     this.metaService.setTag('og:duration', this.video.duration.toString())
 535
 536     this.metaService.setTag('og:site_name', 'PeerTube')
 537
 538     this.metaService.setTag('og:url', window.location.href)
 539     this.metaService.setTag('url', window.location.href)
 540   }
 541
 542   private isAutoplay () {
 543     // We'll jump to the thread id, so do not play the video
 544     if (this.route.snapshot.params['threadId']) return false
 545
 546     // Otherwise true by default
 547     if (!this.user) return true
 548
 549     // Be sure the autoPlay is set to false
 550     return this.user.autoPlayVideo !== false
 551   }
 552
 553   private flushPlayer () {
 554     // Remove player if it exists
 555     if (this.player) {
 556       this.player.dispose()
 557       this.player = undefined
 558     }
 559   }
 560 }